Lichens cannot filter what they absorb since they lack roots and protective surfaces, thus everything is in the air is taken directly in. If there are pollutants, they can build up in the lichen and quickly turn hazardous.
Lichens are not isolated organisms. It is actually a symbiotic relationship between a fungus and an alga or cyanobacterium. Cyanobacteria are occasionally still referred to as 'blue-green algae', despite they are quite distinct from the algae.
Lichens are both fungi and plants—not just one or the other. Fungal hyphen are the threads that make up a lichen's external skin and internal structure. Individual algae cells are scattered amid the strands inside the lichen.
Because they get all of their nutrients and water from wet and dry air deposition, lichens are particularly vulnerable to atmospheric pollutants like nitrogen (N) (fall out). Nutrient loads may rise as a result of nitrogen deposition.
Therefore, Lichens are a type of parasitic organism that often grow on rocks and trees in areas with dirty, polluted air.
Learn more about lichens here:
process and facts, because they are using a systematic method to measure and then record data
Factors contributing to high fertility rate in Africa
Africa has the highest total fertility rate among world population at around 7.0. This rate is continuously on the high especially in Sub-Sahara regions like Sahel, Niger etc.
Some of the factors which led to this high fertility rates are lack of reproductive health awareness among African men and women, social and personal factors.
Social and personal factors play a major role in the high fertility rates in Africa.
Cultural and religious beliefs, personal desire to have large family or gender preferences, requirement for social security or dependency during old age.
Some consider child birth as a matter of prestige and social respect and honor and going against it will lead to societal disapproval.
These factors along with poor awareness on family planning measures led to high fertility rate in Africa.
High Fertility Rates in Africa
Some populations of the world, like Africa’s, have high fertility rates of over 7.0. The fertility rates are especially high in the Sub-Sahara regions like Niger in Africa because of various factors like social and personal factors, tropical climate, lack of general and reproductive health awareness etc.
Lack of general and reproductive health awareness among African men and women is the main reason for increased fertility rates in Africa.
They have little or no awareness of family planning, lack of knowledge of available birth control options like oral contraceptives, teenage pregnancy, poor knowledge of reproductive cycle and health, lack of amenities or centers for family planning, poor self hygiene, high infant mortality rate all lead to high fertility rate in Africa.
it is most likely extrusive
Answer:Your pollex is___
to your axilla.
D. Library Book
This is because library books can not be recycled. Sorry if my answer is wrong, just trying to help.
Additional Information. Unique color and crystal habits; green, blue, and black tarnish; and great malleability and ductility. Most common in volcanic basalt rocks, often near the level of contact with sedimentary rock layer.
-pGLO DNA bacteria will be gram- negative bacteria. +pGLO DNA bacteria will be gram positive bacteria.
+pGLO DNA bacteria will have a thick peptidoglycan layer and no outer lipid membrane.
-pGLO DNA bacteria will have a thin peptidoglycan layer and also an outer lipid membrane will be present.
The basic difference between the two will be the presence or absence of the outer lipid membrane.
You Can't Live Without It
The rough endoplasmic reticulum is located around the nucleus in the cells of both plants and animals. It manufactures and transports proteins and lipids throughout the cell.
the Golgi apparatus is importan because it processes and packages protein and lipid . without the Golgi apparatus you would lose your
DNA, because DNA is composed of protein.